HP DC7800 - Manual (Page 164)

Power Supply
WARNING! Voltage is always present on the system board when the computer is plugged into an
active AC outlet. To avoid possible personal injury and damage to the equipment the power cord should
be disconnected from the computer and/or the AC outlet before opening the computer.
1. Prepare the computer for disassembly ( Preparation for Disassembly on page 107 ).
2. Remove the access panel ( Computer Access Panel on page 113 ).
3. Rotate the drive cage up and disconnect the power cables from all of the drives.
4. Disconnect the power cables from the system board.
5. Release the power supply cables from the cable retaining clips on the bottom of the chassis and
under the drive cage.
6. Rotate the power supply to its full upright position (1), pull the power supply forward (2), and then
lift the power supply straight up and out of the chassis (3).
To install the power supply, reverse the removal procedure.
CAUTION: When installing the power supply cables, make sure they are properly positioned so they
are not cut by the drive cage and are not pinched by the rotating power supply.
152 Chapter 8 Removal and Replacement Procedures Small Form Factor (SFF) Chassis